Sole or heel trimming machine



(N0 Model.) 4 Sheets-Sheet 1.

G. H. TRASK. SOLE 0R. HEEL TRIMMING MAGHINE.

No. 357,743. Patented Feb. 15, 1887.

\A/ITNEEIEIEEI.

\ur, Waahinglmu. Dv C.

(No Model.) 4 Sheets-Sheet 2.

G. H. TRASK.

I SOLE 0E HEEL TRIMMING MACHINE. No. 357,743. Patented Feb. 15, 1887.

\MTIJEEEEE- I INVENT gnaw 4 Sheets-Sheet 4.

(No Model.)

. G. H. TRASK. SOLE 0R HEEL TRIMMING MACHINE. No. 357,743. Patented Feb. 15, 1887.

N. PETERS. Phnio-Lilhogmpher. Wasllingmm an work to it or them, the two series orgroups of I UNITED STATES PATENT Germs.

CHARLES H. TRASK, OF LYNN, MASSACHUSETTS.

SOLE OR HEEL TRIMMING MACHINE.

SPECIFICATION forming part of Letters Patent No. 357,743, dated February 15, 1887.

Application filed October 4, 1886.

T aZZ whom it may concern.-

Be it known that 1, CHARLES H. TRASK, of Lynn, in the county of Essex and State of Massachusetts, a citizen of the United States, have invented anew and useful Improvement in Sole or Heel Trimming Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, formingapartof this specification, in explaining its nature.

My invention relates to the organization in one machine of two groups or series of trimming devices, each of which comprises asoleedge trimmer, with or without a welt-cutter, and with suitable guides for presenting the work thereto, a shank-edge trimmer, with or without a welt-cutter, and with suitable guides for presenting the work thereto, and a heeledge trimmer, with or without a rand-cutter, and with. suitable guides for presenting the trimmers being so arranged in relation to each other and to the frame of the machine that they may be turned simultaneously by the same pulleys, or, in other words, so that two boots or shoes may be trimmed at the same time.

It further relates to an organized machine for trimming the soles and heels of boots and shoes, having a' frame or stand and shafts mounted thereon and extending from both sides thereof, each of which is adapted to carry or support at both ends a trimming-tool, and to the arrangement and location of the ends of the shafts and trimming-tools in relation to each other and to the frame of the machine, whereby two sets or groups of devices may be simultaneously used.

It further relates to the employment or use in this duplex or twin machine of a numberof shafts extended from each side of a common support and adapted to receive and operate reversible trim mers-that is, trimmers adapted to be used alternately or successively upon each side of the machine.

It further relates to the combination and arrangement of the various shafts extended from each side of acommon frame, each shaft supporting at each end a trimmer of the same character, adapted for the same kind of work, with pulleys and a single belt, whereby the two gangs or groups of trimming devices are .3 is a plan view of the machine.

Serial No. 215,254. (No model.)

simultaneously operated by one operating mechanism.

It also relates to-a reversible ordoubletrimv merhaving two cutting or trimming surfaces, one of which is adapted to be used upon one end of its holding-shaft,and the other of which is adapted, upon reversing the trimmer, to be used upon the other end of the same shaft.

Itfurther relates to various details of organization and construction, allof which willhereinafter be referred to.

In the drawin s Fi ure 1 re JlQSGlJtS, in front elevation, the upper portion of the head of a duplex or twin sole and heel trimming-machine containing the features of myinveution. Fig. 2 is a view thereof in side elevation. Fig. Fig. 4 is a view in side elevation of a double or two-part sole-edge trimmer. Fig. 5 is a side elevation thereof. Fig. 6 is an end elevation thereof. Fig. 7 is an end elevation of a double or twopart heeledge trimmer. Fig. 8 is a side elevation thereof. thereof. Fig. 10 is a view in section to illustrate the relation of a randtrimmer, randguard, and top-lift guide and rest, and the heel-rest to the double or twopart heel-edge trimmer. Fig. 11 represents in section the double or two-part sole-edge trimmer and the guides and parts adjacent thereto and used therewith. Fig. 12 shows in section a double or two-part shank-edge cutter upon one end of an operating-shaft. Fig. 13 is a view in section of the rand-guard used upon each end of the heel-trimming shaft. Fig. 14 is an end elevation of a double or two-part shanloedge trimmer. Fig. 15 is a side elevation thereof. Fig. 16 is a view in elevation of the rand and counter guide of the heel-trimming device.

Referring tothe drawings, A is the post or stand of the machine. a is a head bolted to the post or stand, and which supports the shafts and various operating devices, as hereinafter indicated. lhe first shaft in order is the sole-edge-trimmer shaft a, which extends across the head a and from each side thereof, as represented in Figs. 1 and 8. It is of a length to bring its ends into proper position in relation to the sides of the head and to the ends of the heel-trimmer shaft and the shankedge-trimmer shaft. The said sole-edge-trimmer shaftearries at one end the soleedge Fig. 9 is a vertical section.

and the end of the hub 0*.

'lift guide, (1", and top-lift rest (2,

trimmer a and at its opposite endv the soleedge trimmer (f. The second shaft in order namely, the heel-edge-trimmer shaft a has suitable bearings in the head a, and its ends extend therefrom, and each end occupies upon its respective side of the head a suitable relation to the other shafts and trimmers used therewith; and this shaft supports at one end the heel-trimmer a and at its opposite end the heel-trimmer a. The third shaft which the head supports or has bearings for is the shank-edge-trinnner shaft (o (See Figs. 1, 2, and 3.) This shaft, like the shafts a a, extends across the head and from each side thereof, and supports at one end thereof the shankedge trimmer a and at its opposite end the shank-edge trimmer a". The head may support another or fourth shaft, a, which, like the other shafts above named, extends across the head and from each side thereof, to bear or support at one end a grinding-wheel, a, and at its opposite end a grindingwheel, a. This shaft, however, may be dispensed with.

The shafts and the trimmers which they support are simultaneously rotated by a belt, B,

which passes over the pulley b on the grinding-wheel shaft a thc'pulley b on the sole edge-trim m'er shaft to, the pulley If on the heeltrimmer shaft a, and the pulley b on the shank-edgetrimmer shaft a; and each of the two sole-edge trimmers has these elements associated with it-namely, the welt guide or gage c, which is fastened by a headed stud, 0', to its respective end of the shaft a, and a shield or cover, 0", which comprises a plate having a recess, 0*, in its front of sufficient depth to cover the greater part of a single sole-edge trimmer or a double sole-edge trimmer, if one be used. It has a hub or extension, 0 which fits the shaft a, and provides a wide bearing thereon, an arm, 0 which has a hole, 0, fitting thesteadyinguod 0, upon which it is movable. The plate also has the inclined curved or rounded surface 0 which serves as a support for the sole. and the under part of which has a rest for the hand or finger of the operator while stcadying the shoe as it is presented to the trimmer, and especially during the trimming about the toe. The plate is movable away from the trimmer upon the shaft a and supportingrod 0 to uncover or expose it, in opposition to the spring a, which surrounds the shaft a and bears against the shoulder 0" The same adjuncts are used with each of the sole-edge trimmers.

I would here say that each sole-edge trimmer has a welt-trimming surface integral with it. Each of the heel-edge trimmers a a hasa rand-edge cutter, d, and rand-guard d, which is formed or provided by the outer edge of the disk D, and each disk is fastened to its respect ive end of the shaft a" by means of the headed stud (Z Each heel-trimmer also has a topand a heelrest, (1 The top-lift rest d and guide d preferably, are formed upon the plate d, having a hole of sufficient size to receive a section or part of the trimmer, 01*,when'a double or twopart trimmer is used, that part which is not called into use until reversed or used upon the other end of the shaft. This plate cl is fastened to another plate, (77, by means of screws and slots, so as to belaterally movable thereon. The plate (1 also has a large hole of sufficient size to receive the heel trimmer, as above stated. It has an arm, (i which has a long sleeve, (2, formed thereon and fitted to the supporting-rod 01, upon which it is arranged to slide or move in opposition to the spring d, which surrounds the rod and bears against the surface of the head and the inner end of the sleeve 11". The plate al also supports or carries the heel rest-d which may be made adjustable or movable in relation thereto horizontally at a right angle to the plane of rota tion of the cutter by means of the rods d d and a spring, d, and nut d. The plate d" also has an arm, (1 which bears upon a guide or cam, (2 carried by a stud or support, (Z This cam d" governs or controls the position of the top-lift rest and-guide in relation to the trimming-edge of the trimmer during the lateral movement of the plate (2 and the top-lift rest and guide supported thereby in relation to the rand-guide, it being understood that these parts are movable laterally to expose sufficient of the cutting-surface of the trim mer to the work as the length of the section of the heel to be trimmed increases, and the spring d serves to move the plate, and therefore the top-lift rest and guide, in a reverse direction as the length of the section of the heel being trimmed decreases.

The position of the two shank-edge trimmers a a is well shown in Figs. 1 and 2, and they are fastened to the end of their supporting-shaft by a headed stud, and the welt trimmer is formed integral with the shank-edge trimmer, as with the sole-edge trimmer, which may be covered or not in use by a covering sleeve similar to that described in my application for Letters Patent of the United States, Serial No. 204,324, filed June 7, 1886.

I would here say that the various devices or guides for presenting the work to the various trimmers are shown and described and claimed in various of my pending applicationsnamely, No. 204,324, filed June 7,1886, Nos. 205,202, 205,203, and 205,204, filed June 15, 1886, and No. 209,198, filed July 27, 1886 and that I do not claim specifically the said devices herein. I would further say that I do not limit the invention, so far as these features are concerned, to the devices herein specified, as there are other guides and rests which may be used with the various trimmers for the purpose of governing thepresentation of the work thereto.

The post or stand A also supports blowers E E, (shown in dotted outline in Figs. 1 and 2,) which are attached to a common shaft, 6, and rotated from the main shaft by the belts e and pulleys 6 The blower E is arranged vto draw the shavings and dust from the left IIS I rest, f

group of trimmers and the blower. E the dust and shavings from the right group.

All the double ortwo-part trimmers have these features in eom1nonfirst a double or two-part cutting-surface, one section of which is adapted for use upon reversing the trimmer upon the same shaft, or by moving it from the end of a shaft upon one side of the head to the end upon the other side, in which case, however, the trimmer would not be reversed. Of course, if it is reversed the position of the operator in relation to it must be changed in order that it may cut properly. The trimmers are also made, preferably, integral throughout. Their cuttingedges are also formed by recesses which extend the entire length of the trimmer that is, from one end to the otherso that 'a double or two-part trimmer can be made about as quickly, and almost as cheaply,

as an ordinary solid single trimmer.

Of course each trimmer preserves its individual characteristics.

I will first describe thedouble or two'part sole-edgetrimmer. ThisiswellshowninFigs. 4t, 5, and 6. It is made from a solid block of metal of sufficient width to furnish two cut ting-sections, ff. Each of these cutting-sections has a Welt-Ctltt61,f and a sole guard or To form the cutting-edges of the trimmer, reeessesy, extending entirely across the trimmer, are formed and the section f of the trimmer are reduced from the cuttingedges f backward sufficiently to make the cutting-edges most distant from the center of the trimmer. The trimmer, as completed, will have its two cuttingsurfaces oppositely arranged to each other, and a simple reversal upon the same end of the shaft will not bring the other section or part of the trimmer into operation for practical use unless the operator changes his position to the other side of the shaft.

The heel -trimmer is well represented in Figs. 7, 8, and 9. It is made from a solid block of metal, the interior of which is removed to form the recesses g g and the section 9 which is centrally arranged and has a hole, 9 for the reception of the shaft. The cuttingedges 9 are formed by recesses g, which extend inward from the. edge of the trimmer, as represented in Fig. 7, and the outer surfaces of the section which form the cutters are cut away sufficiently to bring the cutting-edges into proper prominence. The trimming-surface of this cutter need not be double the width of two separate trimmers, as its trimming-edge may be so shaped that the central portion of the trimmer may be used in common. It will be seen that this trimmer has cutters extending from both sides of a common support, and that the cutters are integral with this common support, and that the spaces or recesses extend inward and open into cavities g g.

The shanleedge trimmer is shown in Figs. 12, 14, and 15. It is also made from a solid block of metal. It has the cutting-surfaces h 71 one of which adapted to be used at one end of its operating-shaft and the other upon the opposite end of such shaft. Each cuttingsection has cutters 71 of proper form, and welteuttcrs 71. and the recesses h", which form the teeth or cutters, extend entirely across the trimmer, and the two cutting edges or surfaces are opposed to each other, as in the two other trimmers.

By using a grinding-wheel shaft and grinding-wheels on each end thereof, and appropriate supports, m, for presenting the cutters thereto, a saving in time of grinding the cutters is obtained.

In use the machine may be arranged so that the trimmers of one group shall be shaped for one style of work, and the trimmers of the other group for a different style of work. This change in the form or shape of the trimmer-cutter occurs less frequently in the heeltri mmer than in theother trimmers. When the machine is thus prepared, a single operator is enabled to do a variety of work withoutstopping to change his trimmers; ortwo operators can be working simultaneously upon different styles of work, one upon one side of the head of the machine and the other upon the other side.

By using a twopart or double trimmer less time is employed in sharpening thetrimmers, as the two-part trimmer of the construction specified can be sharpened about as quickly as an ordinary single trimmer, and in use one part or section of each trimmer is first employed, and they are then removed and transposed to the other ends ot'their respective shafts, and the ,other cutting-sections of the trimmer then brought into position for use, and they are used until the cutters are dull, when they are reground and used as before.

It is obvious that by this construction or duplex organization several very important requirements are met and advantages obtained. In the first place, there is great economy in floor-space of a factory effected, because, instead of four, five,,'or six separate machines with their independent belts, there is but a single machine, having a capacity of four, five, orsix, using not much morespace than one ordinary heel-tri mining machine occnpies,and, second, there is a very great saving in the cost of construction. The twin or duplex organization enables me to use but one stand and one head, and one set of operating devices to secure the practical results of four, five, or six separate machines. There is also the saving in time in the trimming operation, as thetrimmers are so arranged that the various trimming operations are successively performed upon the same shoe by the same operator,doing away with the change in position and the frequenttransfer of the work required where separate machines are used. vantage which arises from giving one machine three or four times the capacity of the ordinary triinrning-machine,whereby the machine may be employed simultaneously upon two boots or shoes. Another advantage arises IIO There is also the adfrom the duplex cutters, and this relates not only to the cost of manufacture, which is but slightly more than that of a single trimmer, but to the operation as well, for they can be used twice as long without grinding.

It will be seen that the shafts have bearings upon each side of their respective pulleys, and

that the pulleys are centrally arranged upon the shafts, and the shafts are equally balanced at each end, so that they can be rapidly rotated with great steadiness, and the machine be veryevenly balanced.

I would say that it is not always necessary to usetheshank-edge trimmers, in which event the machine as organized would have two groups of trimmers, each presenting a soleedge trimmer and a heel-edge trimmer.

It willbe seen that the disk (Z, upon which the rand-guide d is formed, is adapted to rotate with the shaft a", and that its surface m is shaped to act as a counter guide or support for the counter ofthe boot or shoe while the heel is being presented to the trimmer.

I intend to apply for a separate patent for the cutter-head here described, and hence have claimed-it now only in combination with a horizontal revolving shaft in asole and heel trimming machine.

Many of the details of this machine are shown and described, but not claimed, in the form herein claimed in other applications now pending in the Patent Office, and bearing the serial numbers 205,202, 205,203, 205,204, and 204,324; and the application nowpeuding, No. 205,202, shows more clearly than the present and claims the sliding heel-rest and its cam adjustment.

Having thus'fully described my invention, I claim and desire to secure by Letters Patent of the United States- 1. The combination of the double or twopart heel-trimmer in one piece, having two trimming-sections, with a shaft, to, eachend of which is adapted to receive and hold the trimmer, whereby its cutting-sections may be successively used, substantially as described.

2.. The combination of the double or twopart sole-trimmer in one piece, having two trimming-sections, with ashaft, a, each end of which is adapted to receive and hold the trimmer, whereby its cutting-sections may be successively used, substantially as described.

3. The combination of the double or twopart shank-edge trimmer in one piece, having two trimming-sections, with a shaft, a each end of which is adapted to receive and hold successively used, with the top-lift guide d and toplift rest d, substantially as described.

5. The combination of the rotary heel-trimmer, having double cutting-sections located one at the side of the other and adapted to be successively used, with the heel-rest d substantiall y as described. 7, 6. The combination of the rotary heel-trimmer, having double cutting-sections located one at the side of the other and adapted to be successively used, with the top-lift rest and guide and heel-rest and a rand-guide, sub stantially as described.

7. The combination of the rotary heel-trimmer, having double cutting-sections located one at the side of the other and adapted to be successively used, with a top-lift restand guide movable lengthwise the cutter, substantially as described. 7

8. The combination, substantially as described, of the rotary heel-trimmer, having double-cntting-sections located one at the side of the other and adapted to be successively used, with a rand-cutter,substantially as described.

9. The combination of a rotary trimmer, having trimming edges or cutters of twice the length of the edge of the work to be trimmed,

with a plate having ahole or recess for covering the rear section of the trimmer not in use, and the surface of which plate is concaved for use as a finger-guide in thepresentation of the work to the operative surface of the trimmer, substantially as described.

10. A duplex sole and heel trimming machine having one set of shafts, each shaft of which has tool-carrying ends, and the two sets of duplex trimming-tools, each of the several shafts whereof has its two tool-carrying ends extended laterally from the frame of the machine, and the edge-trimming shaft of which is extended farther at each end than the heel-trimmer shaft, whereby a right and left handed presentation of work is permitted on the same machine and a cheaper and lighter machine made for the same work.

CHARLES H. TRASK.

In presence of F. F. RAYMOND, 2d, J. M. DOLAN. 

